Automobile spotlight



Nov. 27,1923. 1 1, 5,

' E. c. PFAFF AUTOMOBILE SPOTLIGHT Filed Oct. 16 1922 a, 77/4 0 fa/ j JM Patented Nov. 27, 1923.

ERNEST C. PFAIFIE', OF C HIGAGO, ILLIH 61S.

' AUTOMOBILE SPOTLIGHT.

Application filed October 16, 1922. Serial Io. 594,871

To all whom 2'17 may concern:

Be it known that I, Ennnsr C. PFAFF, a

citizen of the United States, rcsidin at' Chicago, in the county of Cookand i tate of Illinois, have invented certain newand useful Improvementsin Automobile Spotlights, of which the following is a specification.

. This invention which relates to a spotlight for automobiles, isparticularly concerned with certain features of construction by whichthe device is specially adapted for attachment to a closedbody, such asthe sedan, coup, etc. I

It is a principal object of'this invention to produce a spot light whichcan be manufactured and installed at small cost; which is simple in itsconstruction and dependable in its operation; and which may bemanipulated from the inside of the vehicle bodyto direct the light beamsin any desired direction.

An exemplification of this invent-ion in a nolog'y hereinafter employedshould be construed accordingly.

The device is shown as mounted upon one of the fixed supports A of thetop or wind shield of a closed car body. Through this body support isformed an opening adapted to receive a tubular arm B which extendsoutwardly to provide a swiveled mounting for the light C. The tubulararm also passes through a plate D secured to the outer side of the bodysupport, and is further held in place with the aid of a bracket E whichis fastened to the inner side of thebody support. By the meansdescribed, viz, the plate and bracket, bearings are provided for thetubular arm B such as to facilitate its rotation, as well as of theother parts which are operatively associated therewith.

At the outer end of the arm is a plug F secured thereto by. ineans'ofscrew threads, or otherwise; in a non-rotatable relation. Mounted uponthis plug is a fitting G in the form of a housing equipped with aremovable side 7.. The housing is shown as having a screw-threadedconnection the plug, but is -p'revented from rotating acre upon throughthe medium of 'a e 8. Mounted to swivel upon the hour is an elbow H onwhich is supper" usual light casing, the elbow bei adapted to'accommodate therein socket 9 into which is fitted the usual tric bulb.

The swiveled connection betweer elbow and housing G may take the to ofat. time a collar 11 which is screw-threaded into the elbow and extendedtherefrom through one wall of the housing to present therein head 12which is in the form of a beveled pinion. By the use of a set-screw 13entered through one wall of the elbow the collar is fixedly held againstrotation relative thereto.

Operatively associated with the beveled pinion'12 is a second pinion 15carried on the outer end oi a tube 16 which is rotatably fitted withinthe arm B. The pinion 1 5 is locked to this tube as through the mediumof a pair of ins 17 each having a terminal 18 which is's idably receivedwithin a slot 19 formed in the tube walls. By this means tube and pinion1'5 are locked non-rotatably, but in such a manner that the tube i movedin endwise direction within the defined by the length of the slots 19.

The inner end of the tube 18 projects a slight distance beyond thecorrespo end. of the tubular arm B, as clearly shot in Fig. 3. Mountedupon the inner end oi the tube 16 is a hand wheel 20 whic locked theretowith the aid of suitabie 21 which are shown as disposed within cesses inone side of the wheel while effect ing a locking engagement with thetube; The recesses wherein the pins lie are faced toward a clutchcollar'22 which is locked to the inner tube 16 so as to remain always injuxtaposition to the hand wheel which is further secured in place withthe aid of a nut23. In this collar-are fixedly mounted pins 24 whichrotrude outwardly therefrom from the lamp related es Fig. 3 in ,29, islocked so P: so

- with.

inward arm B in iihe p6 clutch plate ang or otherwise flange are 0 vWithin suiteb a ,.r i when the Paris a The 23 is p extension thee,dllCiJOl' 8O Whichr and the two connecfiwith "the the usual electricprovioie 22 1 circuit requi lemp. A device T Ill electric description"'"j i ,u v v 'co any dfiSllfiCi operw (i Who-i is r she s-ioownporotate ihe tubular i; is swung or hoih oi? the fol properly insnipienabled eithe to 11 pivotal 'HIO. arm B by about a hon] these twoinoveinen lowing To swivel the our, represented es vertical r drainingit 1 necessary to trei y motion tnrongo V the two nsriis remain ssihleof that the the'inner tube 16's lance veleoi gears.

accompiishnien owin pins 24 en; i whieh ihrongh he oi'hs nos .63; IQi%EI 1GRieih i ringfienseu By puliing sis h mi Wheel in wardiy, novrver, ii e, in

she pins Q engage from he eluseh hand' /vheel of communes inner tube is'Wl'iilie the hand Wl'iee frnsy as required, h ring s ment of ihe Afurther ech est V x 15 l avoid: reistive rotation between the pinioneini the arm B surh as would 'i-ilierwi a. about :i swiveling of theeiiiow. i-Viih cessation of outward pressure ihe Wheei, the

le DGSibiOil of 'Wiii return the Pei-is iio theirnerisition, as shown.in Fig. 3.

, is coi'itempleted, of course, that a suf- '5 number of openings willbe formed i eiuteh plate to reeeive both sets of pins 524; endflfi inany desired position of rotary adjustment. The form of these onenings isof relat ve unin'iportzince, it he i mereiy suiliei in that they act incooperation with the pins to normally hold she hand wheel ugeinsiinoyeinent.

The advantages of the construction herein thei; the several partsmaydescribed readily formed and assembled and he ogsere"red. 'izhi'oughthe medium of a single eon zrolling Wheel. The precise form and coiLYliQ'filGii of ihe seversi elements which are novel L0 this inventionmay, of course, be varied Within considerable limits as de fined iii-theclaims below.

oleiin e 1. In combination with s fixed support having an openingthererhrough, a. spot light Comprising an arm sliclably mounted formention within the opening and extended away from she support a bracketin which the arm is jonrnaled, a nonsing zissociziteil with the bracket,a, clutch plate mounted fast on the arm and disposed withiii-thehousing, stop means against which the (-lutoh plate is adapted to rest,a, spring within the housing exerting pressnre on the clutch plate suchas to hold the letter against he stop means whereby the-normallongitudinal position of the arm is determined, a light movaloly mountedon the outer arm end, an operating Wheel having a releasable connectionwith the clutch plate end adapted both to shift-the arm enciwise end. torotate the same iflhrougrh the medium of the clutch plate, means forpreventing .rotiieion of the eintch phi-to and arm assotherewiiii exceptwhen the letter is slurred enciwise against the sensionof the spring,and e fnrtherconneotion between the wheel anti the light adapted to morethe ietizer independently of any movement of she arm, suhsizzintinlly asdescribed.

23. A spotlight having in combination a hoiiow tubular erin' mounteclfor rotation in e fizrerls'upporb, an inner tube mounted to slide androtate wilihin the arm; a fitting including swiveled elbow, with lightthereon carried by the outer arm end and adapted to be rotated thereby,ii connection between the inner tube and swiveled elbow adapted torotate the letter about its own ms, iin operzihing handle connected to;the inner tube at one end,- and. clutch connections be tween the tubearm and the support adapted to he made or broken with sliding-of thetube within the arm, the clutch connections operating when the parts arein One reliir tive position to lock both the arm and tube against rotarymovements, when in another relative position to permit rotary movementsof only the tube, and when in a third position to permit rotation inunison of both the tube and arm, substantially as described.

3. A spotlight hav'ing'in combination a hollow tubular arm mounted forrotation Within a fixed support 'a fitting carried on the outer arm endan 'ada ted to support a swiveled elbow with ii to thereon; an innertube rotatively and s idably mounted within the arm and connected withthe swiveled elbow in a manner torotate thesame about its own axis,anoperating handle secured fast to the. tube at one" end and adapted tosifie and rotate the same Within the arm, a clutch connection betweenthe tube and arm adapted to lock these parts for rotationin unison ortoreiease the tube for rotation independentiy of the arm, the clutchconnection being made or broken with siiding'movements of the tuberelative to the arm, and spring means tending to hold the tube in aselected position 1ongitildinaliy of the arm such that the clutchconnection is normally'maintained.,

' F ERNEST C. PFAFF.

Witness:

Er BANNING.

